OSI PICS Manual

ISO 8571 for FTAM
Tandem OSI PICS Manual–135046
12-32
A.12 Expanded PDU Field Detail
A.12.13 Concurrency Control
If an implementation does not support access control but does claim support of
concurrency control, this clause shall be completed to indicate which concurrency locks
may be set from the initiator role and which set in the responder role. Further, state the
default values applied by the responder if the concurrency control field is not
implemented.
A.12.13.1 Implemented Values
A.12.13.2 Responder Default Values
Tandem Implementation Note. Concurrency control is not supported by this implementation
of Tandem FTAM.
Concurrency Control Implemented Values
Not Required Shared Exclusive No Access
Action DI RDI RDI RDI R
1 Read o No No o No No o No No o No No
2 Insert o No No o No No o No No o No No
3 Replace o No No o No No o No No o No No
4 Extend o No No o No No o No No o No No
5 Erase o No No o No No o No No o No No
6 Read attrib o No No o No No o No No o No No
7 Change attrib o No No o No No o No No o No No
8 Delete file o No No o No No o No No o No No
Tandem Implementation Note. The following table shows how access is granted on a file for
a particular action. The only implemented values are Shared or Exclusive.
Concurrency Control Responder Default Values
Not Required Shared Exclusive No Access
ActionDRDRDRDR
1Read oNooYesoNooNo
2 Insert o No o No o Yes o No
3 Replace o No o No o Yes o No
4 Extend o No o No o Yes o No
5Erase oNooNooYesoNo
6 Read attrib o No o Yes o No o No
7 Change attrib o No o No o Yes o No
8 Delete file o No o No o Yes o No